We had a northstar popup camper for about a year.
Its quality was so-so. Actually, the woodwork was very nice. The fiberglass siding was good, and the canvas material was good. Frame was solid.
The roof is not so strong, as I found out by just tapping a tree branch while backing up put a dent in the roof. Was not fixable, had to leave it w/ a small dent.
The heater kept us plenty warm in a 0 degree snowstorm, so it was actually insulated pretty well for a canvas top popup.
The rear wall mounted a/c unit was total junk! It worked only one time out and lost all its freon. I had to remove it myself, & take it in to factory service center, wait 6 weeks (w/ a hole in the back of my camper), got it back repaired & working. Took it off-road one time and when were were looking forward to using in sweltering Lake Mead heat. . It didnt work again! Really ticked me off. Took it back again , and same thing. I finally realized that this thing just cant take the vibration of offroad use. Was too bad, because I made a custom battery box for 2 extra batts & a big inverter to power the a/c. it was cool, (too bad the a/c wasnt) never really got to use the a/c.
Another problem was the fridge didnt work on 12v. The dealer told me that just because the fridge had the 12v position, didnt mean it really was an option. well, that was doo. It ended up being a broken wire in the wood frame that a staple cut. I had to fish new wire, because the service tech, couldnt figure it out. Oh well. After that the 3-way dometic fridge worked flawless, even made ice cubes in the hot summer!
During troubleshooting, I found that the moron that wired the thing really cut every corner possible. It really took away from the quality of the unit, and looked very chinsey! Had a big ball of Wirenutted connections in a place that was tough to egt to for repair work. 2 had already fallen off!! what were they thinking using wirenuts on a moving vibrating vehicle. Didnt even use any tape to hold em on. The electrical was junk.
The mechanism that pops up the roof was starting to have some problems, and the swivel points were starting to drop metal shavings (meaning that they were about to quit - and theyre expensive to replace from what Ive heard).
Another thing to consider about a popup is the canvas doesnt stop any noise from coming in when youre trying to sleep. Its very noisy inside if youre sleeping by a road, or in our case, in Circus-circus parking lot in Vegas. We found real quick that as soon as security sees you popped up, they know youre sleeping & kick you out! they dont want you sleeping in their lot, they want you to pay for an rv space, even though youre just trying to get some shut-eye for a couple hours.
It sure got alot of attention, and everyone thought the camper was cool, but they werent aware of the downsides.
Also ours only had a porta-potty, & no shower. Both points are pretty big negatives IMO.
We traded it in for the 5th wheel, and are VERY glad we did. Dont miss the camper much at all.
Sorry for the long post, but wanted to be helpful.
Ill try to post a pic. Good luck in your choice.